Bobbin-holder.



W. WARDWELL.

BOBBIN HOLDER APPLICATION ,I-ILED O0'l.28, 19013.

9%L595i Patented Nov. 30, 1909.

e MW

specification.

T he purpose ofniy UNITED srArnsrr gnnr oFFIon,

SIMON W. .WARDWELL, OF rnovtnlancn,

KNITTING BoBBmcoMPANY, oFfieoRT A 'BOBBIN-HOLDER} T 0 "a l W mitmqy 9 Igit knejvn that L'SI'i o lV Rnwnr a. citizen of'the' United States,residing: at

Prmdenc, in the county of Providence and State'lofBhode Island, haveinvented cerbin-iIIolders, of which the following :is .a

My iijivention relates to improvements in tubes "or holders for bobbinsor yarn packages.

improvement is to pro-. vide'a sectional, telescopic tube which, whenextendednto its full length, providesa suitablelsupport on which to windbobbins of ,yarnor other textile materlals,

"when the yarn is unwound therefrom, autoand which matic ally' closes upandv is shortened in length so that the yarn may deliver freely withoutdragging on the holder. 4

My improvement also provides a much. lighter holder than those now. ingeneral use, and one'which can be compacted in much less space, so thatit. is more convenient in handling and more econ omical for shipment.

invention is fullyset forth in the following specification illustratedby the accompanying drawings, in which g 8a longitudinal I sectionalview showing the holder extended, and illustrating'fthe form of thebobbinwound thereon by dot-and-dash linesjand Fig. 2, a longitudinal,sectional view showing the holder a contracted after wound. v a Y Myimproved holder is particularly adaptthe bobbin is partly uned foruse insupporting yarn wound into the form shownby dot-and-dash lines in 'Fig.l in which -the bobbin has a substantially flat base, a cylindrical bodyand a ta-,, pered nose orde'livery end :This form of bobbin is generallywound on wooden holders having frusto-conical bases and comparas'tively. plong v shanks extending therefrom. Theyarnis laid inconical-layers starting on aw ding continues the .path; of vtraverse baf the holde and a pointedfnoi, the c taperas that.

of the' ba sei Siieh bobbiiis'areealledknit-,-

ting bobbins and are usedto deliver yarn to tain new and usefulImprovements in Bobthe butt.

lines is adapted'to be usedtwitlr bobbinsw s ueh fl as described inmyl,."pending applicants the tapered surface ofthe base with atrav--e1"se equal to the length ofithe taper; and-as ND, MAINE, Ac'onrona'rro'nio'ii, uhitn improved form 4 further improvement byprovidingrfor; scoping the tube portion oftthe holde form traverse.- tothis latter formof bobbin; ai base-oi -the" throughthiscontracted;openings?' y b thea-section b isformedinvithtwozannularwf nnonn ISLAND, ssteitbxi T. f

Specification of Letters'Patent." Patented n ic t onmed o tob'" 1 23,1308. Serial No. 459,2e5s. 1

. knitting machines where it is @essentiarthat the yarn be unwound veryfreely;without? hitch or drag which wouldabe lai'aibl'e te -break" theneedles and injure the fabric,- In my 432,450, filed May 12, 1908,li-haveishown an of bobbiri'in which the balkyg "5 heavy, wooden holderis dispensed with and a light tube substitutedxwitlr'ionly" a tamparat-ively small butt or fornlr at-its "base end- Vith this form ofbobbin. a much greater amount of material can be coinpacted-in'the samespace andthe excessiwe' ..weightand ex pense of the woodenholderai'sdone away wit-h. In the present inventionlI now show- Fig. 1shows the tubea i tnmade parts a, b and 0, but itwill .be'iobvio hat itmight be constructed 1 :of fany nuinber "offl sections. The lower orbaseise tiorr iw has a' butt or form (Z which may :be'of'any suitablematerial such as wood or -fiber'.-=5izThe butt is fastened to thetube-sectionrby ranyfysuitable means, such, for instance,saswhewshoeingwith the tube flanged outvatz'i'tsiend'and hen-t over toindent and engagesthe-materiali-of The form of butt(shown by 'full'above referred to; in which therbase bf th bobbin is composedprincipallyisof'yarn built up in layers of diit'erent lengthswhichoverlap each other and iorm a conicai'heelf on which subsequent layersof uniform trav- 0 erse. are laid. With the -previouslyi lknown P andused form of bobbin.F'the rwinding; is initiated on a butt or formhavinga=diam6- ter at its base equal to the full'sdiameter of the bobbinand all of the layers a re fofruni To adapt ther reseI-it tube Mdimensions illustrated by t-he dash lines 12 might be substituted, butthe smaller butt i enlargements or ringsiwhichzzfit the'v i t erior ofthe main; ,portmnaof thez section a PWI't-h a: l

slight clearance. The ring 6 serves as a 119 pending application Serialit 0. 60

12 to provide bearing points within the section a so that the section 6,while sliding freely, will be held in proper alineinent with the sectiona.

The section Z) is contracted at its upper end with a converging rim 6?,similar to the rim a on the section a, and the section 0 is fitted toslide in this contracted opening in the-same manner as the section 5slides in the section a. The section 0 also has two annular enlargementsc and 0 which provide a bearing against the interior of the section band prevent its removal from the section b. The upper end of the section0 also has its rim turned in at 0 to provide a smooth edge for the yarnto draw across.

The section Z1 is slightly shorter than the section a and its lower endis formed inward in the flange 6* so that the section 0 cannot drop downthrough the section b, but will project slightly through the top whenthe. tube is contracted as shown in Fig. 2. For the same purpose thesection a is longer than either of the -other two sections and is:formed with an internal, annuwr prij'ection or stop a to prevent-theSCl0I1FJ b and c from sliding down through the base. It

will be seen from reference to Fig. 2 that 1, the tube is held fromtelescoping.

the seveir-al sections project slightly, one above another, when thetube is telescoped, so that their ends may be grasped by the fingers inextending the tube.

Having now described the structure of the device its mode of operationin use will next be explained: The tube is extended to its full lengthand applied to the spindle of the winding machine. lVhen used with thesmall vbutt (Z, shown by full lines, the yarn is wound on to the conicalface of the butt.

starting with a traverse equal to the length of the taper of thelatter.- As the yarn is built up on the base of the tube the traverse ofthe guide which lays the yarn is gradually increased until't'iiepredetermined maximum diameter of the bobbin is reached. Thismethod ofincreasing the traverse as the winding proceeds will cause the layers tooverlap each other-and the yarn will be built up in frusto-conical form.After the conical heel is completed the winding continues with alllayers uniform in length and with the path of traverse of the yarn guideadvancing gradually along the length of the tube. As the yarn is builtup along the tube the coils of winding formv a bond between thedifferent sections of the tube, so that when the bobbin is completed tothe dimensions illustrated by dot-and-dash lines, F iIg. 11 other words,the mass of yarn wound tightly around the several sections of the tubehold the latter in their extended positions in rel tion to each other,making a practically rigid internal core or support.

In delivering the material to the knitting or other machine the bobbinis stood on its base endand the yarn unwound from the pointed deliverynose. As the yarn unwinds down the tube it will release the severalsections of the latter, one after another, and as the yarn comes off ofeach section it will drop down into the next lower section. Forillustration: when the yarn has been unwound down to the point f, shownby broken lines Fig. 2, the section 0 will be completely uncoveredwithout any coils extending around itfrom the section 7). There being nobond to hold the section c raised out of the seetionb, gravity willcause it to drop down or telescope into the lower section I), where itis held by the rim 7)". After the yarn has been unwound down to thepointy the section Z) will be-uncovered and will drop down into thesection a carrying with it the section 0. The stop a prevents thesections 1) and 0 from dropping clear through the sec tion a, aspreviously explained. It will thus be seen that the tube isautomatically shortened as the yarn is unwound. the object being toprevent the delivering yarn from wrapping around the tube in unwindingor from dragging across its end. With the holders and tubes now in use,as the yarn is unwound it leaves the support projecting upward and thereis a decided tendency ot the yarn to wrap around. this shank or tube andcause undue drag and resistance to the unwinding. It will be seenthat-the more yarn there is unwound, the greaten the length of supportthere is left extending,

and the greater will be the drag or resist ance to the delivery. It isvery desirable that the tension on the delivering yarn be maintaineduniform from start to finish of unwinding so that the fabric produced bythe machine will not be afiected to vary its character.

My new improvement provides for automatically shortening the bobbingtubeor support at intervals of the unwinding, so that the yarn is preventedfrom dragging on the tube and therefore the tension of delivery willremain practically constant.

It will also be seen that my new holder is much lighter than the Woodenholders now in general use and is of considerably less bulk whentelescoped.

of boxing and freight will be greatly reduced on account of the savingin bulk and weight.

Having now described my device in detail, without limiting myself to theexact con struction and arrangement shown, what I claimiszy g 1 i In aholder for bobbins, the combination of a plurality of tube-sectionsarranged to telescope, one within another, with means to limit themovement of the sections in relation to each other to prevent theirseparation.

2. In a holder for bobbins, the combination of a sectional, telescopictube with means to limit the movement of the sections in relation toeach other to prevent their separation and a butt secured to one of thesectit, as.

3. 'n a holder for bobbins, the combination with a plurality oftube-sections of gran ated diameters arranged to telescope, one ithinanother, and a frusto-conical butt c 1 the section of largest diameter.

4. 1i. bobbin holder, the combination with a tube formed in sectionsadapted to telescope, one within another, of a butt secured to thesection of largest diameter, and means to limit the movement of eachsection in relation to the next section.

In a bobbin holder, the combination of a plurality of tube-sections ofgraduated diameters arranged to slide, one with another, with means tolimit the movement of the sections in relation to each other, so thatwhen the sections are telescoped each suc ceeding section will projectslightly beyond the end of its adjacent section.

6. The combination in a bobbin holder, of a telescopic tube formed withsections arranged to slide one within another, each section having oneend contracted, with the next inclosed section projecting through thecontracted opening, and the sections formed with stops to prevent theirends from sliding out beyond the openings in the inclosing sections.

7. The combination in a bobbin holder, of a telescopic tube havingsections with contracted openingsfwith one section fitted to thecontracted opening of the next section, and annular projections on eachinclosed section adapted to prevent the removal of one section from thenext surrounding section.

8. The combination in a bobbin holder, of a telescopic tube havingsections a, b and a, each section. having a contracted opening at oneend, the section 6 having an outside diameter adapting it to slidethrough the opening inthe section a, and the section 0 adapted to slidethrough the opening in the section b; both sections 12 and 0 havingannular enlargemei'its adapted to the internal diametors of the sectionsin which they slide 'Jthe section 6 having a rim 6 to prevent thencetion0 from dropping down through it, and the section a having a stop a onits interior to prevent the section through.

9. The combination in a bobbin holder having a plurality of sectionsadapted to telescope one within another, each section having a bearingin its surrounding section which allows it to slide freely, and means tolimit the movement of one section in relation to its inclosing sectionso that when the sections are" withdrawn asuiticient length of bearingcontact is provided between each 6 from dropping .two sections to holdthe several sections in alinement. or

In testimony whereof I afiix my signature in presence of two witnesses.

' SIMON \V. \VARDVVELL. Vitnesses:

JOHN V. DEAN, -DANIEL MCNIVEN.

